package org.csmzxy2334;

public class example03 {
    public static void main(String[] args) {
        int i=20;
        long l=i;
        float f=l;
        double d=f;
        System.out.println("long类型变量l:"+1);
        System.out.println("float类型变量f:"+1);
        System.out.println("double类型变量d:"+1);
    }
}
